天轮head sheave又叫 绳轮(sheave wheel) 是设置在井架或暗井顶部,承托提升钢丝绳的导向轮。矿井立井井架上方调节钢丝绳运动方向的定滑轮,他承载着罐笼、吊桶或者立井箕斗的重量,也常常被看作矿井的标志。按《煤矿安全规程》,提升设备的天轮的直径与钢丝绳直径之比值应符合:井上提升装置的滚筒和围抱角大于90°的天轮,不小于80;围抱角小于90°的天轮,不小于60;
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天轮headsheave又叫绳轮(sheavewheel)是设置在井架或暗井顶部,承托提升钢丝绳的导向轮
天轮head sheave又叫 绳轮(sheave wheel) 是设置在井架或暗井顶部,承托提升钢丝绳的导向轮。矿井立井井架上方调节钢丝绳运动方向的定滑轮,他承载着罐笼、吊桶或者立井箕斗的重量,也常常被看作矿井的标志。按《煤矿安全规程》,提升设备的天轮的直径与钢丝绳直径之比值应符合:井上提升装置的滚筒和围抱角大于90°的天轮,不小于80;围抱角小于90°的天轮,不小于60;
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